DELF B1: includes three group tests (oral comprehension, written comprehension, written production) where other candidates take the test at the same time, in the same room, for 115 consecutive minutes. And an individual oral test where each candidate is alone in front of 2 examiners for 15 minutes.
The skills expected of candidates, preparation tips for each exercise and examples of exam subjects are available on the France Education international website:
o For DELF B1 scolaire and junior: https://www.france-education-international.fr/article/delf-juniorscolaire-niveau-b1?langue=fr
o For DELF B1 for the general public: https://www.france-education-international.fr/diplome/delf-tout-public/niveau-b1?langue=fr